baber/WOPTO huggingface dataset:
Patent GB-679776-A (GB)
Title: Improvements in or relating to preparation of uronic acids and derivatives thereof
IPC: C07H7/033
Filed: 1950-07-19
Abstract: Derivatives of uronic acids are prepared by contacting an aqueous solution of an aldose derivative, having the aldehyde function protected by an acetal linkage, with an oxygen-containing gas in the presence of platinum and/or palladium to oxidize the primary alcohol group.  Suitable aldose derivatives are a - and b -glucosides, e.g. propyl, isopropyl, butyl, methyl, ethyl, phenyl, benzyl, cyclohexyl, and b -hydroxyethyl glucosides, 1,2-isopropylidene glucose, sucrose, maltose and trehalose, and other glycosides such as galactosides, mannosides, xylosides, and arabinosides.  They are dissolved in water, preferably containing an alkaline buffer such as alkali carbonate, bicarbonate, phosphate, tetraborate or hydroxide, to maintain a pH of 4-11, and oxidized as by passing through a column containing the catalyst while passing air or oxygen or bubbling the latter into a suspension of the catalyst. Temperature is preferably 40-120 DEG  C. and pressure may be used. Coloured substances may be removed with carbon or solvents, metallic ions with a cation exchange resin, dicarboxyllic acids by precipitation as calcium or barium salts, and acidic compounds including uronic acid derivatives separated from neutral products by an acid absorbent resin.  The uronosides are hydrolysed by heating with acids or cation exchange resins, and the uronic acid or its lactone recovered by crystallization.  Examples describe the oxidation of methyl-a -d-glucoside, 1,2-isopropylidene glucose, sucrose, methyl, ethyl, and b -hydroxyethyl glucosides, methyl mannoside, methyl galactoside and methyl arabinoside using as catalysts platinum or palladium or both on alumina, platinum or palladium on carbon and platinum on silica gel.
Patent GB-1177915-A (GB)
Title: Improvements relating to Insulated Electric Cable
IPC: H02G15/18
Filed: 1968-04-17
Abstract: 1,177,915. Cable joints and terminations. LACAL INDUSTRIES Ltd. 17 April, 1968 [11 Sept., 1967], No.18065/68. Heading H2E. In a cable where there is a break in insulation e.g. at a joint or termination, the resulting interstices formed between the surface of a conductor 12 and the end of the insulation 14 at said place where the insulation terminates are sealed from the ingress of fluids, by applying a sealing compound 16, and surrounding the cable with a tubular sleeve 18 so as to contain the compound 16 and grip a portion of insulation axially beyond it. The sleeve may be made of a heat shrinking plastics material.
Patent GB-426317-A (GB)
Title: Improvements in and appertaining to moving picture displaying and apparatus therefor
IPC: G03B35/00
Filed: 1933-06-26
Abstract: 426,317. Stereoscopic kinematography and projection ; projection screens. JERRARD, E. P., 166, Banket Street, Hillbrow, Johannesburg, South Africa. June 26, 1933, No. 18129. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 28, 1933]. [Class 97 (i)] The members of stereoscopic pairs of images are projected in rapid alternation on to the same screen area, and each image may be projected many times between consecutive feed movements ; forms of projection screen and of arrangements are referred to. Fig. 1 shows a projector comprising a casing 1 of thin metal carrying two lens tubes 4, 4<1> adjustable by a turnbuckle device 7 to converge on the screen 13. One or more lamps 11 are controlled by a shutter 9 rotated by a motor 10 to illuminate in rapid succession images on a film 12 or on slides in holders 6. Fig. 2 shows a modification in which prisms 14 are provided to permit projection of the images by one lens in a holder 4. The projector front 15 may be adjustable in position by any convenient number of screws 16. Projection may be effected on to a screen comprising two or more plates of celluloid, glass, or flexible material, spaced apart and variably enclosing coloured fluid; means for bending or curving the screen more or less in different directions may be provided. Possible arrangements of cameras for taking stereoscopically related images on one or more films are referred to ; for example, the camera may be pivoted on a laterally movable base plate, or may be used with a system of prisms and/or lenses and reflectors, to produce images simultaneously or intermittently on to one or both sides of one film or on two films.
Patent GB-1457752-A (GB)
Title: Reducing water consumption in water closets
IPC: E03D1/00
Filed: 1973-04-17
Abstract: 1457752 Reducing volume of flush in water closets CHING SEOW KONG 17 April 1974 18215/76 Divided out of 1457751 Heading E1C The disclosure is the same as in the parent. The claims are directed to the block when in use in a cistern.
Patent GB-1091399-A (GB)
Title: Boat construction
IPC: B63B3/00
Filed: 1966-04-26
Abstract: 1,091,399. Boat construction. J. DERKENNE. April 26, 1966 [April 29, 1965], No. 18234/66. Headings B7A and B7S. In a method of constructing a hull or a shell for a boat a first layer of thin metal strips 11, 12, 13 is placed edge to edge on a mould, a second layer of plastics material (20), Fig. 3 (not shown) offering good adhesion to the metal is then added and a third layer of thin metal strips (31), (32), (33) likewise placed edge to edge. In one embodiment of the boat the shell constitutes the entire hull, the mould comprising stringers 1, 2, 3 and transverse formers 6, 7, 8 being detachable from the first layer. In another embodiment the mould constitutes the inner frame of the hull, the first layer of metal strips being fixed to the frame by riveting, gluing or welding. The layers may be multiplied and the directions of the metal strips of each layer are preferably perpendicular to the directions of the strips in each adjacent layer.
Patent GB-103642-A (GB)
Title: Improvements in Means for Vulcanizing Punctures in Rubber Tyres.
IPC: B29C35/00
Filed: 1916-12-20
Abstract: 103,642. Marvel Accessories Manufacturing Co., (Assignees of Rose, S. I.). Jan. 26, 1916, [Convention date]. Vulcanizing.-A known kind of patch for tyres consisting of a disk 2 of rubber having a thin flexible backing 3, such as fabric, which allows heat to pass, and is preferably larger than the rubber so as to protect it during vulcanization is vulcanized to a tyre by a special form of vulcanizer. After vulcanization, the backing may be removed. The reverse face of the rubber may be protected by similar material 5, which is removed prior to application to a tyre. The patch is pressed and vulcanized by means of the apparatus shown in Fig. 1, in which the vulcanizing-member m has a concave thin sheet-metal bottom affixed to the supporting-body b, a combustible material being burned within the member m. Reference has been directed by the Comptroller to Specification 16549/15.
Patent GB-146331-A (GB)
Title: Material for artificial members to be used internally for human or animal bodies
IPC: A61F2/00
Filed: 1920-07-02
Abstract: 146,331. Hauptmeyer, F. May 21, 1919, [Convention date]. Teeth, artificial.-Consists in the use for pins and plates of artificial teeth, orthodontic appliances, and the like of chromium-nickel steel alloys containing about 18 to 23 per cent chromium, 5 to 10 per cent nickel, and 0.1 to 0.4 per cent carbon.
Patent GB-663322-A (GB)
Title: Compressed air loading and firing mechanism for toy firearms
IPC: A63H5/04
Filed: 1949-07-11
Abstract: 663,322. Toy fire arms. PINCIONE, G. July 11, 1949 [Jan. 26, 1949], No. 18314/49. Class 132 (iii). A compressed air loading and discharging mechanism for toy firearms comprises, in the construction shown in Fig. 1, a pivoted " trigger " sector 13 which when drawn back, causes a piston 4 to move back in a cylinder 3 against a spring 18 after the cylinder has abutted onto ribs 23, thus allowing strip material from a reservoir 33 to be fed across a hole 27 in a muzzle 27'. Rubber members 30 draw the strip through for part of their rearward movement only and a roller 10 then withdraws from a recess 9 in rod 8 thus allowing packing 24 at the end of the cylinder 3 to seal against the strip which is punctured as the air is compressed in the cylinder by the piston 4. A modification, Figs. 5, 6 (not shown) has a magazine 37 from which projectiles 39 may be fired.
Patent GB-480158-A (GB)
Title: Pharmaceutical cachet
IPC: A61J3/07
Filed: 1937-07-01
Abstract: 480,158. Pharmaceutical cachets. NUYTS, G. A. H. July 1, 1937, No. 18321. Convention date, July 1, 1936. [Class 81 (i)] Pharmaceutical cachets are formed with extensions 3 by which they can be held for example when being dipped into water for softening purposes. The extension may be formed in one of the cupped members 1, 2 of which a cachet is built up or in a flat member 6.
Patent GB-146424-A (GB)
Title: Means for fixing side-plates to the handles of pistols
IPC: F41C23/10
Filed: 1920-07-03
Abstract: 146,424. Ortgies, H. Sept. 20, 1918, [Convention date]. B r e e c h actions, sliding breech-block; stocks.-Consists in securing the side plates of a pistolbutt by a spring catch arranged inside the butt and having lateral flanges, which engage recesses formed in the inner sides of the plates. In the construction shown, the catch comprises a pivoted plate 5 having side flanges 7, which enter recesses formed in the side plates 12. The catch is pressed into the locking position by a spring 8, and can be disengaged only when the magazine is removed. The spring 8 also acts on the retaining catch 11 of the magazine. In a modification, the catch for the side plates is a sliding one.
Patent GB-1384211-A (GB)
Title: Hammer mills and shredders
IPC: B02C13/31
Filed: 1973-04-17
Abstract: 1384211 Impact pulverizers TONGAAT SUGAR (PTY) Ltd 17 April 1973 [18 April 1972] 18530/73 Heading B2A An impact pulverizer or shredder comprises a screen grid which can yield in the event of the entry of tramp material. A toggle arm is pivoted to the mill frame 13 at 12 and a second toggle arm 14 is pivoted to the screen. The toggle elbow 18 is biased almost straight by a compression spring located between an upper adjustable strip 24 (which sets the spring force) and an anchor element 22. The spring is such as to maintain the grid in normal or "at rest" position when the toggle is at its minimum angle. A lower stop 25 fixes the "at rest" position of the grid.
Patent GB-117393-A (GB)
Title: Improvements in and relating to Razors.
Inventor: ESLER PATRICK
IPC: B26B21/02
Filed: 1918-01-22
Abstract: 117,393. Esler, P. Jan. 22, 1918. Stropping-apparatus. - A longitudinally-curved clip a with edge portions b is pushed endways on the back of the blade of an ordinary non-safety razor, to ensure the required tilting of the blade in the act of honing or stropping.
Patent GB-1180479-A (GB)
Title: Last for the Manufacture of Footwear
IPC: A43D3/02
Filed: 1967-04-21
Abstract: 1,180,479. Lasts. CONSTRUCTIE WERKHUIZEN VAN OORDEGEM S.A. 21 April, 1967 [22 April, 1966], No. 18565/67. Heading A3B. The heel part 2 of a shoe last, hingedly connected at 20 to the fore-part 1, is movable in a hollow 3 in the fore-part. A projection 18 attached via a supporting element 17 to the heel part 2 is guided in a groove in a stainless steel plate 4 attached to the lower surface of the hollow. The extent of pivotal movement of the heel part 2 is limited by a stop 14 engaging a heel part extension 7 which moves in a channel in the fore-part 1. The last may be cast from aluminium alloy.
Patent GB-1006533-A (GB)
Title: Improvements in or relating to dividing mechanisms for gear cutting machines
Inventor: BACHMANN LOTHER
IPC: B23Q16/06
Filed: 1964-05-05
Abstract: 1,006,533. Machine tool details. ZAHNSCHNEIDEMASCHINENFABRIK MODUL. VEB. May 5, 1964, No. 18635/64. Headngs B3B and B3K. Indexing means for a gear-cutting machine comprises a slotted disc 4, connected by a friction coupling or freewheel 6 to a coaxial arm 9, and a twin-armed lever 18 pivoted on the arm, one lever arm co-operating with an arm 12 carrying a lug 11 to engage a slot in the disc 4 and the other lever arm being operated by a reciprocable member 23, and the reciprocable member being connected also, with lost-motion, to the arm 9. The disc 4 is a slotted rim bolted to a hub 3. The lost-motion connection is effected by a pivot pin 25 which connects the lever 18 to the piston rod 23 and projects freely into a slot in the arm 9. Thus, in operation, the rod 23 is moved to rock the lever 18 and raise the lug 11 before the lost-motion is taken up and the disc 4 is rotated until the lug 11 drops in the next slot. The retraction of the piston rod 23 is limited by a set-screw 35, the setting of which can be made by a gauging block 37. The set screw stops the travel of the piston rod 23 just before the lug 11 drops into a notch, the final indexing travel being accomplished by the inertia of the rotating disc 4. In modifications, the lever 12 is movable linearly instead of pivotally, the hydraulic cylinder 28 can be pivotally mounted, or the piston rod 23 may include a joint, or the device 28 may be electromagnetic. The machine may have a milling cutter for cutting bevel gears, the cutter having a gap to allow the indexing movement to take place.
Patent GB-1299826-A (GB)
Title: Method for sterile packaging of articles
Inventor: MOORE FRANCIS CLAUDELL
IPC: A61F15/00
Filed: 1971-06-02
Abstract: 1299826 Sterile packaging MOORE-PERK CORP 2 June 1971 18666/71 Heading B8C An article is packaged in a flexible container containing a predetermined amount of a liquid sterilizing agent, the walls of the container are flexed so that the entire interior surface of the container and the exposed surface of the article are washed with the sterilizing agent, and the package is heated so as to sterilize the article and the container. The article may be a surgical sponge, a suture, a catheter, or a hypodermic needle. The sterilizing agent may be a solution of hexachlorophene, iodophor, parachlorometahexanol, sodium ethylmercurithiosalicylate, or benzalkonium chloride. In a first embodiment (Figs. 1-6) a sponge is placed in a bag containing the sterilizing agent, the sides of the bags are pressed together to compress the sponge, the bag-top is heat sealed, and further compression placed on the bag. The bag may be a rubber-modified linear polythene/Mylar laminate. In a second embodiment a sponge is soaked with the sterilizing agent and then placed on a sheet of a rubber-modified polythene/Mylar laminate which is folded and sealed into a tube about the sponge. The tubed sponge is then compressed and the tube-ends are heat sealed.
Patent GB-1206665-A (GB)
Title: Multi-turn coil for electro-magnetic forming installations
IPC: H01F7/20
Filed: 1968-04-19
Abstract: 1,206,665. Making electromagnetic forming coils. BROWN, BOVERIE & CIE A.G. 19 April, 1968 [22 April, 1967], No. 18724/68. Headings B3A and B3Q. A multi-turn coil for electromagnetic forming comprises turns made solely of steel in which the individual turns are formed from radiallyslotted, annular steel discs 1 which are twisted into helical form and welded together at the slots, preferably in staggered fashion. Channel shaped insulation 2, 3 covers the edges of the turns and they are secured between end insulaticn 7, 8 and clamps 9, 10 by bolts. A soft-iron sleeve 15 surrounds the assembly which is cooled through pipes 11, 12. Steel conductors 5, 6 are welded to the end turns.
Patent GB-512352-A (GB)
Title: Improvements relating to emulsifying and homogenising apparatus
IPC: B01F3/08
Filed: 1938-06-24
Abstract: 512,352. Emulsifying-apparatus. CALDWELL, W. J. June 24, 1938, No. 18729. [Class 1 (i)] In emulsifying-apparatus of the reciprocating piston type, the substances to be emulsified are forced past a clack valve C and its seating L and through one or more passages N between the surface of a disc D and the seating O therefor and thence through a delivery outlet F, the clack valve and.the disc being pressed against their seatings by a spring E interposed between them. Fig. 3 shows part of an emulsifier intended for domestic use, G being the bottom of the usual container, and A being the piston. The emulsifying device is held in position by a cap M screwed in to the bottom of the cylinder. Fig. 4 shows the upper side of the disc D with a projection P to locate the spring E, and Fig. 5 shows the V-shaped passages N in the lower face of the disc. The pressure required for emulsification may be governed by adjustment of the screw cap M on the bottom of the cylinder, by the strength of the spring used and/or by the size of the grooves in the disc. Ia the production of artificial cream, hot water can be released when desalting butter by removing the cap.
Patent GB-329546-A (GB)
Title: Improvements in knife sharpeners
IPC: B24D15/08
Filed: 1929-06-19
Abstract: 329,546. Gibbons, K. M. June 19, 1929. Steels and V-slot blade sharpeners.- A knife sharpener is provided with a clip or attachment whereby it can be secured to a steel or the handle thereof. The sharpener, consisting of a frame 4 containing a cage 5 carrying rotatable sharpening elements 6, is secured by a rivet or a screw 10 to a sleeve 7 split longitudinally at 8 and adapted to be slid into position along the steel 1; or the sleeve may be sprung over the steel, the edges of the sleeve being bent outwardly. A screw tending to close the clip, or other means may be employed for retaining the sharpener in position. Specification 233,855 is referred to.
Patent GB-625364-A (GB)
Title: Improvements relating to light metal bodies and methods of manufacturing the same
IPC: C22C1/04
Filed: 1947-07-15
Abstract: 625,364. Powder metallurgy. SOC. ANON. POUR L'INDUSTRIE DE L'ALUMINIUM. July 15, 1947, Nos. 18835 and 18836. Convention dates, July 17, 1946, and May 8, 1947. [Classes 83 (ii) and 83 (iv)] Making rods; working at specified temperatures.-Aluminium or aluminium alloy bodies of high tensile strength and Brinell hardness are made by compressing and sintering or by hot working metal powder of such fineness that at least 50 per cent of the particles have at least one dimension smaller than two microns. In one modification the powder is compacted at a pressure of two metric tons per square cm. and sintered at a temperature exceeding 400‹ C. and preferably between 550‹-and 600‹ C. A billet so produced may be extruded into rod at temperatures of from 200-630‹ C. The powder may be pressed dry but is preferably mixed into a paste with water. An increase in the oxygen content of the powder is said to increase the hardness of the article so that articles having parts of different degrees of hardness may be produced by using powders with different oxide contents. Alternatively the oxide content of the surface could be increased by subsequent treatment. If further oxidation is not required, the pressing and sintering may be carried out in an atmosphere of hydrogen or nitrogen. In a modification, the three steps of compacting, sintering and subsequent working are replaced by a single operation in which the powder is hot-pressed to the required final form in a die or is extruded at 500‹ C. It is stated that an aluminium or aluminium alloy body produced by the above method retains its comparatively high tensile strength and hardness under continued high temperatures.
Patent GB-189728-A (GB)
Title: Improvements in bedsteads and the like
IPC: A47C20/02
Filed: 1921-12-15
Abstract: 189,728. Myers, W. Dec. 15, 1921. Bedsteads.-A bedstead is provided with longitudinal partition-boards F, Fig. 3, padded on the sides J and pivoted at each end F' in a bracket I secured to the frame G of the wire mattress. The horizontal faces of the brackets I have slots K, and the arms M are hinged at N to allow the boards F to be turned down and lie horizontally. Fig. 1 shows the invention applied to a bedstead as described in Specification 183,181. In this case the bed-clothes for the side wings A are passed beneath the boards F or through a longitudinal slot in them, and then up and over the top, separate bedding being provided for the centre portion 0. To convert an ordinary double bed into a twin-bed, two boards F are fixed side by side along the middle of the bed, the arrangement of the bed-clothes being the same as for the side-wings A, Fig. 1.
Patent GB-645702-A (GB)
Title: Improvements in or relating to manufacture of thiourea
Filed: 1947-07-15
Abstract: In a method for producing thiourea by thermal conversion of ammonium thiocyanate, for example as described in Specification 400,916, in which unchanged ammonium thiocyanate is recovered in aqueous solution containing impurities consisting of thiourea and by-products of the conversion, the solution is acidified, for example with sulphuric acid, and treated to separate thiocyanic acid, which may be neutrailzed with ammonia and the resulting pure thiocyanate recycled to the heating step, thus avoiding the cyclic build-up of impurities in the system.  If desired, part of the thiocyanate may be separated by crystallization before acidification.  The acidified liquid is extracted with a water-immiscible selective solvent for thiocyanic acid, such as ether, cyclohexane, acetophenone, ethyl acetate, or isoamylalcohol.  Upon neutralization of the extract with aqueous ammonia, the thiocyanate formed passes into the aqueous phase, whence it is recovered by crystallization, for recycling to the heating step.  The solvent is recycled to the <PICT:0645702/IV (b)/1> extraction step.  The aqueous phase from the extraction of the acidified liquid is evaporated whereupon ammonium sulphate crystallizes out, the mother liquor still containing a fractional concentration of thiourea and guanidine thiocyanate.  The former is extracted with ethyl acetate and, by addition of aqueous ammonia and ammonium nitrate to the aqueous phase, guanidine nitrate is recovered.  Specification 645,701 also is referred to.ALSO:<PICT:0645702/III/1> In a method for producing thiourea by thermal conversion of ammonium thiocyanate, such for example as described in Specification 400,916, in which unchanged ammonium thiocyanate is recovered in aqueous solution containing impurities consisting of thiourea and by products of the conversion, the solution is acidified for example by sulphuric acid which, on the addition of a water miscible selective solvent for thiocyanic acid such as ether, cyclohexane, acetophenone, ethyl acetate or isoamyl alcohol, passes into the non-aqueous phase, is separated from the impure wash liquors and recovered by known means, last of the ammonium thiocyanate may be crystallized out before acidification, the mother liquor being processed as above.  The thiocyanic acid in non-aqueous solution may be neutralized with aqueous ammonia, the ammonium thiocyanate formed passing into the aqueous phase from which after evaporation and crystallization it may be recovered pure, suitable for recycling to the thermal conversion step, thus avoiding a cyclic build-up of impurities which would otherwise occur.  The aqueous phase from the extraction of the acidified liquid may be evaporated, whereupon ammonium sulphate crystallizes out, the mother liquor still containing a fractional concentration of thiourea and guanidine thiocyanate.  The former is extracted with ethyl acetate, and by addition of aqueous ammonia and ammonium nitrate to the aqueous phase guanidine nitrate is recovered.  Specification 645,701, [Group IV (b)], also is referred to.
Patent GB-112441-A (GB)
Title: Improvements in Rotary Field Magnets.
IPC: H02K3/48
Filed: 1917-12-19
Abstract: 112,441. Aktiebolaget Ljungstrom Angturbin, (Assignees of Ljungstrom, B., and Ljungstrom, F.). Dec. 19, 1916, [Convention date]. Coils.-In rotary field magnets, and particularly those having parallel winding slots, the ends of the inner and outer conductors 5, 9, Fig. 1, in each slot are extended beyond the terminals 7, 11 as shown at 8, 10 respectively, with the object of balancing centrifugal forces. To prevent displacement of the terminal 7, the inner conductor 5 is fastened to the iron core 1 by means of a pin 6 insulated from 'the iron and preferably riveted to the conductor; the pin 6 may be dispensed with by causing a projecting part of the conductor or of the terminal to engage grooves in the bottom or side walls of the slot.